Today's drop ·
Cheap flights from San Francisco to Cancún
$375 round trip right now, 26% under the $508 this route usually costs.

How cheap is this?
Telly prices every departure date six months out on this route, for trips of 2 to 14 nights, and measures each fare against what the route usually costs. The cheapest round trip right now is $375 on JetBlue, 1 stop, against a usual $508. 26% under usual, among this route's lowest.
When to go
The cheapest dates fall in Jan, for trips of 2 to 3 nights. Jan in Cancún runs around 80°. The dates come picked because a cheap fare only exists on certain days; the exact ones and the booking link are in the app.
Passport required
Cancún is outside the US and Canada, so you need a passport. Every flight on Telly leaves the country; that is the whole filter.
Questions about this route
How much is a flight from San Francisco to Cancún?+
Right now $375 round trip, on JetBlue. The route usually costs $508, so this fare is 26% under. Checked Nov 3, 2026.
When are the cheapest dates to fly to Cancún?+
The cheapest dates Telly found are in Jan, for trips of 2 to 3 nights. It prices every departure date six months out on this route and keeps only the lowest. The exact dates are in the app.
Do I need a passport to fly from San Francisco to Cancún?+
Yes. Cancún is outside the US and Canada, and every flight on Telly leaves the country, so every one needs a passport.





